Wheras for me, having my efforts snatched away from me even the one time would be a pretty serious party foul, and having it happen twice would be "something better change or I'm out and I'm going to try to convince as many people as I can to go with me."
Like I genuinely consider this a MASSIVELY not-okay thing, and I don't really understand how it can be parsed as completely in keeping with the so-called "traditional GM" approach to play.
Well, all I can say is, I would have no interest in participating in that. Negative interest, in fact. I don't like CVC combat.
But entirely apart from that: What if your character had won, only to realize that a random rat had already consumed the artifact on the second round without anyone noticing?
Would that not dampen your enjoyment of that experience, at least a little?